基于RSSI-APIT算法的室内定位系统
Xiaoyan Shen1,2, Boyang Xu1,2, Hongming Shen1
1School of Information Science and Technology, Nantong University, Nantong 226019, China.
Sensors (Basel, Switzerland)
|December 23, 2023
概括
本研究介绍了RSSI-APIT算法,通过将接收信号强度指示 (RSSI) 和近似完美的点在三角测试 (APIT) 与机器学习相融合,提高室内定位的准确性. 改进的算法大大减少了复杂环境中的本地化错误.
科学领域:
- 计算机科学 计算机科学
- 电气工程 电气工程
- 地理学工程 工程地质学
背景情况:
- 室内定位系统由于信号波动和多路径效应而面临准确性挑战.
- 像APIT这样的传统方法在广泛的场景中难以准确.
- 机器学习集成是克服当前室内定位技术局限性的关键.
研究的目的:
- 通过改进数据预处理和本地化算法,开发一个增强的室内本地化系统.
- 使用高斯过和人工神经网络 (ANN) 减轻RSSI波动和多路径效应.
- 通过一种新的RSSI-APIT算法,提高室内定位的准确性和稳定性.
主要方法:
- 接收信号强度指示 (RSSI) 和近似完美点在三角测试 (APIT) 定位方法的融合.
- 整合高斯过和人工神经网络 (ANN) 进行RSSI数据预处理.
- 将RSSI范围功能纳入APIT,以提高广域定位精度.
主要成果:
- 与三边定位相比,RSSI-APIT算法成功地减少了约2.9米的本地化误差,与传统APIT相比,减少了1.8米.
- 在100平方米的复杂环境中,定位误差在1.55米以内被始终控制.
- 该系统证明了号呼叫频率的减少,从而降低了运营成本,提高了本地化准确性和稳定性.
结论:
- RSSI-APIT算法在室内定位准确性和稳定性方面提供了显著的改进.
- 先进的信号处理和机器学习的整合有效地解决了多路径效应,并提高了定位精度.
- 这种增强的系统提供了一个具有成本效益和可靠的解决方案,用于在各种环境中精确的室内定位.
相关概念视频
01:28Field Application of Global Positioning System
48
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
48
01:26Errors in Global Positioning System
46
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
46
01:30Types of Global Positioning System Surveys
59
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
59
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
36
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
36
01:30Introduction to Global Positioning System
62
The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
62